package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minion.MinioConfiguration;
import com.atguigu.lease.common.minion.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {

    @Autowired
    private MinioProperties minioProperties;

    @Autowired
    private MinioClient minioClient;


    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

        boolean bucketExists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioProperties.getBucketName()).build());

        if (!bucketExists){
            minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioProperties.getBucketName()).build());
            String policy =  """
            {
              "Statement" : [ {
                "Action" : "s3:GetObject",
                "Effect" : "Allow",
                "Principal" : "*",
                "Resource" : "arn:aws:s3:::%s/*"
              } ],
              "Version" : "2012-10-17"
            }
            """;
            policy = policy.formatted(minioProperties.getBucketName());
            minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioProperties.getBucketName()).config(policy).build());

        }
        String nowDay = new SimpleDateFormat("yyyyMMdd").format(new Date());
        String objectName =  nowDay + "/" + UUID.randomUUID().toString().replace("-","") + file.getOriginalFilename();

        minioClient.putObject(PutObjectArgs.builder()
                .bucket(minioProperties.getBucketName())
                .stream(file.getInputStream(),file.getSize(),-1)
                .object(objectName)
                .contentType(file.getContentType())
                .build());
        return String.join("/", minioProperties.getEndpoint(), minioProperties.getBucketName(),objectName);
    }
}
